You can use AirWatch applications in addition to AirWatch MDM features to further secure devices and configure them with added functionality.
Samsung Knox supports the deployment of internal and public applications. Internal apps are company-specific apps developed by your organization that you may not necessarily want to be searchable in the public app store, but you want your users to have access to this application from their device. Use AirWatch to push public applications to devices. This process includes adding and approving applications for integration between AirWatch and Samsung Knox from the Google Play Store which can be accessed from the AirWatch Console.
For more information about deploying public and internal applications, including Google Play for Work, see the comprehensive AirWatch Mobile Application Management Guide.